| Type: | Package |
| Title: | Fractal Dimension Analysis of Soil Particle Size Distribution |
| Version: | 0.1.0 |
| Maintainer: | Fehim Jeelani Wani <faheemwani@skuastkashmir.ac.in> |
| Description: | Function for the computation of fractal dimension based on mass of soil particle size distribution by Tyler & Wheatcraft (1992) <doi:10.2136/sssaj1992.03615995005600020005x>. It also provides functions for calculation of mean weight and geometric mean diameter of particle size distribution by Perfect et al. (1992) <doi:10.2136/sssaj1992.03615995005600050012x>. |
| License: | GPL (≥ 3) |
| Encoding: | UTF-8 |
| RoxygenNote: | 7.2.3 |
| NeedsCompilation: | no |
| Packaged: | 2024-05-26 12:53:24 UTC; wani |
| Author: | Fehim Jeelani Wani
 [aut, cre],
M. Iqbal Jeelani [aut],
Shakeel Mir [aut],
Showkat Maqbool [aut],
M. Auyoub Bhat [aut],
Inayat Khan [aut],
Yasir Hanif [aut],
Nasir Bashir [aut] |
| Repository: | CRAN |
| Date/Publication: | 2024-05-27 15:10:05 UTC |
Geometric Mean Diameter
Description
The function computes the geometric mean diameter of particle size distribution
Usage
GMD(Mass, Size)
Arguments
Mass |
Numerical vector containing the mass of each particle size class |
Size |
Numerical vector containing the average of each particle size class |
Value
Geometric Mean Diameter
References
Perfect E, Rasiah V, Kay BD. (1992). Fractal Dimension of soil aggregate size distributions calculated on number and mass. Soil Science Society of America Journals, 56: 1407.
Examples
data <- data.frame(Mass = c(15.1,28.9,11.3,14.6,7.9,22.2),
Size = c(0.053,0.1765,0.4,1.25,3.375,4.75))
attach(data)
GMD(Mass = Mass, Size = Size)
Mean Weight Diameter
Description
The function computes the mean weight diameter of particle size distribution
Usage
MWD(Mass, Size)
Arguments
Mass |
Numerical vector containing the mass of each particle size class |
Size |
Numerical vector containing the average of each particle size class |
Value
Mean Weight Diameter
References
Perfect E, Rasiah V, Kay BD. (1992). Fractal Dimension of soil aggregate size distributions calculated on number and mass. Soil Science Society of America Journals, 56: 1407.
Examples
data <- data.frame(Mass = c(15.1,28.9,11.3,14.6,7.9,22.2),
Size = c(0.053,0.1765,0.4,1.25,3.375,4.75))
attach(data)
MWD(Mass = Mass, Size = Size)
Computation of Fractal Dimension
Description
The function computes the fractal dimension of particle size distribution based on soil mass
Usage
fractdim(Mass, Size, TM, dmax)
Arguments
Mass |
Numerical vector containing the mass of each particle size class |
Size |
Numerical vector containing the average of each particle size class |
TM |
Numerical value containing the total mass of soil |
dmax |
Numerical value containing the average of maximum particle size class |
Value
Fractal Dimension
References
Tyler S. W., Wheatcraft S. W. (1992). Fractal scaling of soil particle size distribution: Analysis and limitations. Soil Sci. Soc. Am. J., 56: 362.
Examples
data <- data.frame(Mass = c(15.1,28.9,11.3,14.6,7.9,22.2),
Size = c(0.053,0.1765,0.4,1.25,3.375,4.75))
TM <- 100
dmax <- 4.75
attach(data)
fractdim(Mass = Mass, Size = Size, TM = TM, dmax = dmax)